( ex ) 



othei- species of the genus, but the expansion is abrupt and 

 the sides of the lamina distal to it are parallel. The shape 

 suggested by the lamina in the first three species is that of a 

 chemist's combustion-tube, short and broad in F. doxo, longer 

 and narrower in the other two. The plume-scale of P. liliana 

 is quite distinctive, and one of the most curious known to me. 

 The basal expansion is very large and well-rounded, the base 

 itself being usually flattened. Tiie appearance suggested by 

 the outline of the lamina is that of the thin glass flasks used 

 in chemical laboratories. The long axis of the lamina, how- 

 ever, is not straight, but obtuse-angled. This gives the neck 

 of the flask a decided list. At the junction of the neck with 

 the body of the flask is a very conspicuous granular area, oval 

 in shape, dark by transmitted light, and showing a compara- 

 tively transparent, roughly circular patch in the middle. The 

 apex of the lamina is sharp. The disc is large, figure-of-eight 

 shaped, and exhibits a clear, round or oval area, which appears 

 to mark the point of attachment of the footstalk. The latter 

 is sharply bent. A small bright point which is usually visible 

 in connection with the clear discal area just mentioned may 

 be an orifice, or may possibly indicate the actual termination 

 of the footstalk. The ordinary scales in Pi)iacopteri/x are very 

 frequently spatulate. 



The next genus, Belenois, has its meti'0[)olis in Africa, but 

 outlying forms occur in Southern Asia^ the IMalayan Islands, 

 and even as far eastward as Fiji. One species stands quite 

 apart from the rest in virtue of the very remarkable character 

 of its plume-scale, which may really be called uni(|ue. This 

 is Belenois (jidlca. The lamina in this species is slug-shaped, 

 somewhat broader towards the base. The distal and proximal 

 borders are both rounded, the former more so than the latter. 

 The fimbriae appear to be represented by four or five minute 

 tubercles on the distal border or apex ; the footstalk is long, 

 and the disc, in marked contrast to the rest of the genus, 

 very small. The lamina shows a curious sculpturing, looking 

 like a series of short grooves arranged in longitudinal rows. 

 These may possibly be orifices, compensating for the apparent 

 absence of fimbriae ; their appearance is somewhat suggestive 

 of the markings on the '" battledore scales " of Lycaenids. 



